Forty years and counting, that’s how long we’ve been actively pursuing the State of the Art of engine performance, it all started back in the late 1960’s, in the local auto parts store’s machine shop doing a valve job on a 1962 Chevy 235 Cubic Inch six cylinder head. In 1973, my father and I opened our own auto parts store in Orland Park, Illinois; a suburb on the southwest side of Chicago. It was very successful and soon expanded with a complete machine shop, including a Superflow Dyno for all Research and Development needs. After 25 years of wholesale auto parts and engine rebuilding, when the business made a turn to what I call “Fast Food” auto parts, I decided to leave the parts business and concentrate on engine building, which continues to date. Over the years we’ve built engines for almost every phase of motor sports, always with the finest machinists and personnel. But first and most importantly, our goal is to build a customer base that will trust us to provide them with consistent workmanship and quality products for all of their motor sport needs.

Below are a few pictures of the machine shop located in Homer Glen, Illinois. We can be reached, at (708) 638-7595 or We strive to maintain the best level of customer service to guarantee our customers are successful.

Current Shop Projects:

- Apex Turbo Lake Race (King of Trail) Stock Chassis, GNS Fuel Injection, Turbo and Motor

- Apex Turbo Radar Run Sled, Proline Chassis, GNS Fuel Injection

- Apex Turbo 660 Drag Racer (Former Haydays winner in RX-1 body), Proline Chassis, GNS Fuel Injection, Turbo, and Motor

President/Owner Greg Santry


GNS Enterprises
16832 Parker Road, Homer Glen, IL 60491
(708) 638-7595 Email: